DK27382A - PROCEDURE FOR THE PREPARATION OF OXAZOLDIN-2,4-DIONE - Google Patents

PROCEDURE FOR THE PREPARATION OF OXAZOLDIN-2,4-DIONE Download PDF

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Publication number
DK27382A
DK27382A DK27382A DK27382A DK27382A DK 27382 A DK27382 A DK 27382A DK 27382 A DK27382 A DK 27382A DK 27382 A DK27382 A DK 27382A DK 27382 A DK27382 A DK 27382A
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DK
Denmark
Prior art keywords
formula see
halogen
preparation
see diagramm
unsubstituted
Prior art date
Application number
DK27382A
Other languages
Danish (da)
Other versions
DK150140B (en
DK150140C (en
Inventor
H Scholz
Original Assignee
Basf Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Basf Ag filed Critical Basf Ag
Publication of DK27382A publication Critical patent/DK27382A/en
Publication of DK150140B publication Critical patent/DK150140B/en
Application granted granted Critical
Publication of DK150140C publication Critical patent/DK150140C/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
    • C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D263/34—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D263/44—Two oxygen atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

1. A process for the preparation of oxazolidine-2,4-diones or the formula see diagramm : EP0056966,P6,F4 where R**1 is naphthyl, or phenyl which is unsubstituted or substituted by one or more halogen atoms, methyl or methoxy, R**2 is hydrogen, alkyl of 1 to 4 carbon atoms, halogen, vinyl, methoxymethyl or carboethoxy, and R**3 has the same meanings as R**2, R**2 and R**3 being identical or different, or R**2 and R**3 are bonded to one another and each is methylene, by reacting a hydroxycarboxylic acid amide with a diorganyl carbonate, wherein an amide of the formula see diagramm : EP0056966,P7,F1 where R**1, R**2 and R**3 have the above meanings, is reacted with a carbonic acid ester of the formula see diagramm : EP0056966,P7,F2 where R**4 is phenyl which is unsubstituted or substituted by methyl or halogen and R**5 has the same meaning as R**4, or R**4 and R**5 together are 1,2-phenylene, at from 50 to 250 degrees C, and the phenols R**4 OH and R**5 OH formed during the reaction are isolated, preferably by distillation.
DK027382A 1981-01-24 1982-01-22 PROCEDURE FOR THE PREPARATION OF OXAZOLIDIN-2,4-DIONE DK150140C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3102359A DE3102359A1 (en) 1981-01-24 1981-01-24 METHOD FOR PRODUCING OXAZOLIDINE-2,4-DIONES
DE3102359 1981-01-24

Publications (3)

Publication Number Publication Date
DK27382A true DK27382A (en) 1982-07-25
DK150140B DK150140B (en) 1986-12-15
DK150140C DK150140C (en) 1987-06-15

Family

ID=6123295

Family Applications (1)

Application Number Title Priority Date Filing Date
DK027382A DK150140C (en) 1981-01-24 1982-01-22 PROCEDURE FOR THE PREPARATION OF OXAZOLIDIN-2,4-DIONE

Country Status (6)

Country Link
EP (1) EP0056966B1 (en)
AT (1) ATE9801T1 (en)
DE (2) DE3102359A1 (en)
DK (1) DK150140C (en)
GR (1) GR77325B (en)
IE (1) IE52262B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613333A1 (en) * 1996-04-03 1997-10-09 Bayer Ag Process for the preparation of oxazolidine-2,4-diones
JP2015504040A (en) * 2011-12-15 2015-02-05 コルゲート・パーモリブ・カンパニーＣｏｌｇａｔｅ−Ｐａｌｍｏｌｉｖｅ Ｃｏｍｐａｎｙ Aqueous oral care composition

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338220A (en) * 1942-01-31 1944-01-04 Mallinckrodt Chemical Works Process of making oxazolidinediones
US2909467A (en) * 1958-07-09 1959-10-20 Us Vitamin Pharm Corp 3-(d-alpha-methylphenethyl)-5-methyl-1, 3-oxazolidine-2, 4-dione
US2928840A (en) * 1958-11-26 1960-03-15 Us Vitamin Pharm Corp 3-(o-substituted phenyl) oxazolidinediones and process therefor
DE1813434A1 (en) * 1968-12-07 1970-06-25 Bayer Ag Process for the preparation of omicron-hydroxy-aralkyl ethers
DE2527677A1 (en) * 1975-06-21 1977-01-20 Bayer Ag PROCESS FOR THE PREPARATION OF 2,4-DIOXO-1,2,3,4-TETRAHYDRO-S-TRIAZINO- SQUARE BRACKET TO 1,2-A SQUARE BRACKET TO -BENZIMIDAZOLE
DE2813873A1 (en) * 1978-03-31 1979-10-11 Basf Ag PROCESS FOR THE PRODUCTION OF OXAZOLIDINE-2,4-DIONEN
DE2827414A1 (en) * 1978-06-22 1980-01-10 Basf Ag METHOD FOR PRODUCING OXAZOLIDINE-2,4-DIONES

Also Published As

Publication number Publication date
DE3260914D1 (en) 1984-11-15
DK150140B (en) 1986-12-15
IE52262B1 (en) 1987-08-19
EP0056966A1 (en) 1982-08-04
IE820138L (en) 1982-07-24
DE3102359A1 (en) 1982-08-19
ATE9801T1 (en) 1984-10-15
GR77325B (en) 1984-09-11
EP0056966B1 (en) 1984-10-10
DK150140C (en) 1987-06-15

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